Have you tried medical cannabis. For many people a strong indica with induce sleep every time without negative side effects. And didn't Illinois just legalize cannabis for medical and recreational? For me however, it does not work and actually makes me stay awake even more. My recommendation is to take a CBD supplement to help counteract any possible undesirable negative side effects of the THC. The other thing I found with medical cannabis after having weaned myself off psych. meds. which upset my natural brain chemistry and thyroid from it's normal levels is that cannabis dials up the metabolism a bit, thus stimulate the hunger response, but this also excentuates the homeostasis and puts a stronger emphasis on the metabolism. The induces the biological and physiological response to go back into balance. I believe that although cannabis didn't help with my particular insomnia it did help me recover from the detrimental effects of using allopathic psych. meds.. Good luck. 3 rules to follow for me worked well. Sleep, diet, exercise. Keep refining and adjusting for an optimum health response and slow improvement is likely.